Jack post



Oct. 6, 1931. R Q RUMBAUGH l 1,826,574

' JACK POST Filed Sept. l2, 1927 40, walking beam;

W Figure l;4 ,c r Figure 5 is a detailed perspective view of 1 50 c attaching device. ff.

' Perennialk c oct. 6, 1931 ROLAND CRAIGRUMBAUGH, or' 'sHREvEroRm LOUISIANA JACK Pos11 Application filed September 12, 1927. Serial No. 219,061.

My invention relates to Vjack posts which are used for supporting the power shaft in a f v:walking beamfpumping outfit, although of course, not limited tothis particular vuse f v i 5:3' Briey stated, .the primary'object of the 'invention is to provide'a very simple, light, strong andl efficient j ackv post of -metalto vtake the place of theu'sual kwooden jack postthe 'component parts ofwooden posts, such as are .("r' commonly used, being hardto obtain, astan'dfard ywooden postfbeing incapable ofV standing the .rigorousservice to which they ypost is subjected. and which hard lusage will have no effectupon'a post' constructed with metal in accordance 'witlrmy invention.

i Y, A more specific objectl of the' invention `is to provide 'a post havingnovel means ,for se- *curing the shaft bearing in place thereon, which means also serves to reinforcefthe'post i "'foyfto provide a more rigid'ls'tructure.

f Y 'lheforegoing andl otherfobjects of the in vention,4as vwill be m'ore apparent hereinafter,`fare attained by means of a novelcombination andarrangement of parts to be here- 925 inafter described andy claimed,'-'re'ference Ibein'g had Vto'the accompanying drawings which illustratesthe now preferred form 'of *the invention. It is to'v be understood, however, that 'the' invention is'capable'lofother `f D mechanical expressions-,within the kscope .of theY subject matter.claimed.V Y f Referring specically tothe drawings,

wherein the. same'reference characters-have ybeen'usedto designate the same parts in all- ?35 views, I* A] c Figure l isa sideelevation of a'jackpost f constructed in accordance with my invention and illustrating the'power wheel, crankshaft adapted tooscillate the f post member'a. The upper bearing member" 1 orcap 15is provided with a recess `15a into 1 "which the boss 13a of the saddle member-13 and pitnian, which is lugar@ 2 is vai'caigecaonai view faken on the line 2 2 of Figure 35x 0f-ee posa Y e 45 Figure 4 is asection 'on the line lof FigureB isa vfragmentary ytop-plan view' theifpivotpin, and f f c Figure 6 is adetailed perspective of a bolt L-thesleep'er l', as indicated at y f y f Diagonal' braces 6 are riveted to the innen` T .Refcr'ring specifically to the drawings, l designates-a concrete or other sleeper,-of which there aretwo, one'being disposed at either side of the crankshaft 2 and inl spaced parallelism@ y v Y There are two jack posts d, one being mounted on each of the sleepers 1; For purposes ofvdes'cription but one jack post will be referred to inasmuch asthey are identical.

, A The Ajack post 8` comprises' a U-shaped up- -1 standingk member 8av the loweren'ds of which are suitably bolted against thel'inner faces of' spaced angle beams 4, which are boltedto sides of the upstandingpost member 3a adjacent the bightportion thereof and have theiry outerf'ends secured to the angle bars 4 vby'meansiof boltsf8.l There are four reinforcing bars or propmembers 6,.Figure 4f .illustrating two extending in opposite vdirections from'each leg of the upstanding member 3a.y The lower ends ofthe prop members 6 are held in fiat contact with the upstanding portions o f the angle vbars-4 by means of the Aouter sides of afclevis 9 which ispivotedI upon the bolt 8. v

vEach'of the propv members 6 is provided intermediate its ends with an auxiliary prop member l0 whichis riveted thereto 'as at ll44 Q andhas its outerend riveted tothe inner surface of the adjacent leg of upstanding -member as indicated'A at 12'. Rivets or fasteningv means 12 may also secure member c 3a toy angle beams 4. y i i The bearing which supports the;r crank shaft 2vco1nprisesa saddle 13 having arecytangular grooveor recess 14 in its bottom to receivey the bight portion of the upstanding In order to removably secure the bearings y13,v 15 in place upon the bight portion of the -upstanding post member 3a I provide turnbuckle rods 17 the lower ends of lwhich are Y' engaged withl theclevises 'YQWhile they eyes 17a at their upper ends are engaged in surfacerecesses at the rear portion of'lugs 1 8 which'are provided ateither end Vof the saddle member 13. VThe cap member V or v the bearing'iscoredoutatits upper surface adjacent each end'` as findicatedjat v19 .so as ,to permit the eyelfaof the turnbuclrle rodv 17 to be located in place, as shown in. Figure 2in the recess rearwardly or the outwardly-v A. f t vn l., j la projecting ear 18;

g {meter-able.fv

In 'order to make 'sure that .the eyes 17a l do notbecome disengaged from-'the lugs 18; I lprovide rods 20' extending through ears l:18;

and also throughl the holesin the superposed portion' of thecap` plate 16; f-"While theseV rods P 20" are vnot"absolutely necessary, -yet their use The rodsQO inladditiori to serving as 'a meansr forl securing the-eyes 17 against disengagement from thefliigs i18 also serve Yto 'rigidify .the construction inasmuch dsV are extended v :down

bifurcationsA er 'keeper plates."` 2154 which are fthe ytcp Qface' V"ora I lug 118 'while-the other vnii t 22 lbears against the` topfface or the can 175.

v 'Freni the foregoing vdescription' taken in connection with they accompanying drawings A itwill be readily appreciated by those'ski-lled inthe art that lha-ve' constructed a very j under 'surfaces spaced' ironia saidears,1"and "means for holding said capvplate andbearing Vass'embled; f'

v81;. 'A jackv ypost constructionv compri-singv a durable jack post involving a minimumVv nur-nf.

desired reinovegt-he cap'l portionof the bearinglglj this can' befdoneby merely' taking ofthe-,nuts Vor the boltsl and `remcvingthe `upper?nuts 22 frointhe rods 20. Asl already'explained the bolts L16, arel not.

Y 'absolutely necessary and' may be dispensed kHaving thus described my invention-f,t what liters'Patentis:-' Y r 'f 15A ydevice of the class describedcompris# lan upstan-ding U-shaped metalpost-5'v a' rbase member having apairV of vspacfedup-' n ling,l.a clevis mounted en eachv of saidboltsbetween the flanges orthe base andbetween 5 standing `flanges between which said 'post is "jdisposed'and to which thelegs' thereof .arev

Q fastened, 'gdiiplicate `pairs of prop members rfastenedlto the 'innerfsurfaces of the legs of Y said Ushaped post-and extending diagonal# a ly downward in opposite directions, a 'bolt'at Y leo either side of saidpost andfextending through "said, base member 4,flanges and .fthe "ends` of each pair ofprop members to anchorgthe latter, aV bearing reinovablylseated' iiporiftlieV` n upper bight por-'tien end of-zsaidpo'st, 'saidr j hearinghavingfearsl at opposite sides,.the

upper` surfaces of said ears having rear recesses, t'urnbuckle rods'having Vends ei'igage-U ableffin'said ear' recesses, c1evisescarried by said boltsand carrying the other ends ofrsaidl turnbuclrle rods,- the sidesr1 of ysaid Vclevises e engaging saidprop members to hold the same lin engagement with the inner Vsurfaces of said Y base member flanges, acap member for said bearing, Vtie rods extending through said'cap p member and lapertured ears to hold-'said capVV member in place and to prevent disengage- ,Y mentor said turnbucklerods fromsaid ears,

andmeansfor anchoringsaid tie rods to said Y 2.- A'deviceof the classdescribed comprising'an upstanding U-shaped metal' post, a base member havinga pair of spaced upstanding ianges between which said post isV dis'- osed and'to which the legsfthereofare'astened, duplicate pairs of prop members tas,-V

U-vshaped post downwardY .in opposite directions,

faces or .saidlears/having', rear recessesfturning, the ends of saidpcap Vplate hav-ing theirl two pairs of brace'V members secured to lying inwardly of-.theflanges or said base bolt extending through said vflanges vand through said 'brace ;members,5'aV bearing Y f. mounted upon .the `top of. said' post; tie means extending fromopposite ends or' said Vbear- 'the l brace members, and said clevis engaging LVthe sides Cif-said brace members to hold them against the inner surfaces of saidriianges, each ofsaid tiemeans being securedto .one

vof'said clevises'- x ,p Y

4.Acgaclr post-construction:comprising av base having laterally spaced longitudinal v iianges, an' upstandingid -shaped postV having its legs secured against the inner surfaceslof said `flangesy two' pa-irjof` brace members secured at one end totheiniier surfaces ofthe legsrofsaid posts andleXtending diagonally downward in opposite c directions, :means or opposite directions,vk

tened to the inner surfaces of the legs lof said v and VextendingV i diagonally aV bolt at l, either side of said post andfeXtendingthrough' said base member iangesand theend'sofeach Y Vpair or prop vmembersgtoA anchor-tlielatter, e bearing removably se'ated'upon Vthe upper 4bight portiofnfend' of sai-d :posty' said ybearing i having ears atopposite. Ysides,jth;-iupper sur- Abuckle AVrods havingv endsl engageable 'inl'` said "-7 fearrecesses,clevises carried by said-bolts carrying the other ends Qiigsaid fturnbuckle trods, the.sides of saidclevises engaging sai-d rprop :members to holdthe same ine'ngagelment.witli the' inner surfaces V:.orfxs'aid AA'base Y g :member'flanges, a cap member forsaidbearf securing the lower end of the respective brace members of each pair against the inner surface of the ad] acent base flange, an auxiliary brace member secured to the lnner surface lof each of said aforementioned basemembers and intermediate the ends of thelatter, the other Vends of said auxiliary brace members being secured tothe inner surface of the adjacent leg of said postand to the roximate base flange, andthe lower ends o the auxiliary brace members at each side of the base being in substantial engagement andv the other'ends intersecting said first mentioned Y* brace members at substantially a right angle.

K `.5. The combination setforth in claim 4, and the securing means for the lower ends ofsaid first mentioned brace members comr prising'a bolt extending through said iianges s and each pair .of brace members', a .bearing o upon said post, tie means secured to opposite ends of said bearing, a clevis upon each of said bolts and between the flanges and brace members, said clevis serving fto hold ,Qthe 'outer ysurfaces of said brace members 25./ ing each secured to one of said clevises.

against said flanges, andnsaid tie means be- (i.V A'device ofthe class described compris- *Y ing anupsta-nding U-shaped metal post, a

" ibase'member having a pair of spa/ced upstanding flanges between which said post isy disposed and to which the legsthereof are fastened, 'duplicate pairs of prop members fastenedtothe inner surfaces of the legs of ends of each pair of prop members to anchor lthe latter, a bearing block removably seated Vupon the upper bightportion end of said A.with said bearing block, clevises carried by.

either side of said post and extending ROLAND CRAIG RUMBAUGH.

Y said U-shaped postvand extending dia onally Y gdownward Yin opposite directions, a olt at through said base member flanges and the v post, turnbuckle rodshaving ends engageable Ysaid bolts and carrying the other ends of'said l turnbuckle rods,ffthe sides of saidk clevises enygaging'said prop members to hold the same in engagement with the inner surfaces of said base member flanges,` a cap member for said bearing, and post-stabilizing and reinforcing tie rodseXtending through said cap mem-y ber and bearing block to hold said cap memv ber in place, and portions of said tie rods overlyingv block-engaged portions of said turnbuckle rods to prevent' disengagement of said turnbuclrle rods from said bearing block,

vand means forjanchoring said tie rods to said support.

i 17.',A device of the class described comprisingr an upstanding U-shaped metal post,

a base member having'a pair of spaced upv standing flanges between which said post is disposeduand to which-the `legs thereof are i fastened, duplicate pairs of prop members fastenedto the inner surfaces of the legs of said U-shaped post and extending `diagonally downward'in opposite directions,`.a bolt at 

